Apple Inc. v. Superior Court of San Diego Cnty.

*672*1106In this writ proceeding, we decide an issue of apparent first impression: Does the Supreme Court's analysis of the admissibility of expert opinion evidence in Sargon Enterprises, Inc. v. University of Southern California (2012) 55 Cal.4th 747, 149 Cal.Rptr.3d 614, 288 P.3d 1237 ( Sargon ) apply when a trial court considers a motion for class certification? For reasons we explain below, we conclude Sargon applies to expert opinion evidence submitted in connection with a motion for class certification. A trial court may consider only admissible expert opinion evidence on class…